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What is electroreception and how do sharks use it?
animals.howstuffworks.com/fish/sharks/electroreception.htm
Sharks use electroreception to locate prey. Learn how the elasmobranch family uses electroreception and what ions have to do with electroreception.
Are meerkats immune to poison?
animals.howstuffworks.com/mammals/meerkats-poison.htm
Meerkats immune to poison aren't rare in the Kalahari Desert -- they've evolved to resist snake and scorpion venom. Read about the meerkats immunity.
How can an octopus make itself look like another animal?
animals.howstuffworks.com/marine-life/octopus-camouflage.htm
Octopus camouflage is essential to survival in the depths of the ocean. Learn how octopus camouflage wards against predators like sharks and rays.
Why do cougars scream?
animals.howstuffworks.com/mammals/cougar-scream.htm
Cougars scream during mating season to attract the opposite sex. Learn how cougars scream and why humans don't hear these cougar screams too often.
Why is exercise important for heart health?
Exercise is as important for heart health as eating right and avoiding stress. Learn about aerobic exercise and why it's so important for heart health.
How can adding iron to the oceans slow global warming?
science.howstuffworks.com/environmental/green-science/iron-sulfate-slow-global-warming.htm
Scientists propose adding iron to the oceans to cut carbon dioxide levels and, in turn, decrease temperatures. See if adding iron to the oceans works.
Why Do Kangaroos Hop?
animals.howstuffworks.com/mammals/kangaroo-hopping.htm
Kangaroos hop with the help of powerful toes and springy tendons. Learn how kangaroos hop across terrain, and if they're physically able to walk.
Former Jobs of 12 Celebrities
entertainment.howstuffworks.com/former-jobs-of-12-celebrities.htm
Celebrities weren't always rich and famous. At one time, they had regular jobs, too. Check out the former jobs of these 12 celebrities.
How to Treat Cracked Nails
health.howstuffworks.com/skin-care/nail-care/tips/treat-cracked-nails.htm
Want to know how to treat cracked nails? Visit HowStuffWorks to learn how to treat cracked nails.
Can I run when I have a cold?
Can I run when I have a cold? Visit HowStuffWorks to learn if you can run when you have a cold.